Hi Milan,
thx 4 your answer. I uploaded an attachment screenshot as well but it doesn’t show up in the post so I’ll try again.
I even don’t understand why there seem to be a minetest_game folder with mods. In my home/.minetest there is no such folder.

Thx Milan
Terminal work done, but how do I make out any dublicates in .Minetest/Mods? the mods are all in sep. folders and used to work before the update. It would be very nice of you, if you could help me with the Mods Folder This is my Mods folder:

When the mods are in the sub folder Minetest-game and the Mod folder in the Main .minetest folder is renamed every mod is blue in the world config. When I only have the mods folder active which is in the .minetest folder I can configure Nods and the world starts. But I get a psychedelic result O.o

Your /mods/ folder contains mods from the subgame.
Minetest automaticly preferes mods from /mods/ and ignores the subgame.
Minetest core is not compatible with the outdated subgames mods, just kick them.

The blue mods are the mods from the subgame, they can and will stay so.

When oyu only have the mods folder active, the game mods in it are still incompatible with the new version.

Hi Milan,
thx for the help. I let the Mods in the subgame folder and deleted all the doubles in the main Mods folder.
This worked as far as I can play the local worlds again now. But as you say and I understand it some of the Mods in the subgame folder seem to be outdated, due to irregular behaviour. On the first sceenshot you can see that the character button is behind an inventory field and I think I can fix it with newer versions of the mods.

the second screenshot indicates problems with areas and I have no idea how this can be fixed, nor if it evea has to be fixed.